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Related Experiment Video

Updated: Apr 30, 2026

Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses

Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses

Published on: January 7, 2019

Visuomotor behaviours when using a myoelectric prosthesis.

Mohammad M D Sobuh¹, Laurence P J Kenney, Adam J Galpin

¹Department of Orthotics and Prosthetics, Faculty of Rehabilitation Sciences, University of Jordan, Amman, Jordan. M.Sobuh@edu.ju.jo.

Journal of Neuroengineering and Rehabilitation

|April 25, 2014

Summary

Visuomotor behaviors, including gaze patterns, in trans-radial myoelectric prosthesis users are similar to those using a simulator. These gaze behaviors remain consistent with practice, offering insights for prosthesis design.

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A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study

Published on: November 6, 2015

Area of Science:

Rehabilitation Engineering
Human-Computer Interaction
Neuroscience

Background:

Myoelectric prosthesis use differs in gaze patterns compared to intact individuals.
Gaze behavior may reflect compensatory strategies for proprioceptive deficits and control system delays.
Understanding visuomotor behavior is crucial for improving prosthesis design and user experience.

Purpose of the Study:

To characterize visuomotor behaviors during the learning process of using a trans-radial myoelectric prosthesis.
To compare visuomotor behaviors between intact individuals using a prosthesis simulator and experienced amputee prosthesis users.

Main Methods:

Seven anatomically intact subjects learned to use a trans-radial prosthesis simulator, performing a functional task.
Gaze behavior, task movement time, and hand function (SHAP test) were recorded.
Visuomotor patterns were compared between simulator users and experienced amputee prosthesis users.

Main Results:

Intact subjects using the simulator focused ~90% of visual attention on the hand or object during reaching and grasping.
This gaze pattern remained consistent with training and was similar to experienced amputee users.
Task duration initially increased for simulator users but decreased to levels comparable to amputee users after training.

Conclusions:

This study provides the first functional description of gaze behaviors during myoelectric prosthesis use.
Gaze behaviors demonstrated relative insensitivity to practice.
Significant similarities in visuomotor behaviors were observed between amputee and prosthesis simulator users.